Error: Can't resolve 'worker_threads'

[Robinyo]

I installed unzipit:

npm install unzipit@1.0.0

Added the following to a (Ionic / Angular) page:

  import { setOptions, unzip } from 'unzipit';

  setOptions({ useWorkers: false });

  ...

  private async loadData() {

    forkJoin([
      this.documentService.getDocument(this.id, 'urn:oid:1.3.16.1.38818.449459763.20190718104352576')
    ]).subscribe(async data => {

      const DOCUMENT = 0;

      const decodedDocument = atob(data[DOCUMENT]);

      const {entries} = await unzip(decodedDocument);

      // print all entries and their sizes
      for (const [name, entry] of Object.entries(entries)) {
        console.log(name, entry.size);
      }

    });

  }

Error:

[ng] Build at: 2022-07-10T00:43:16.263Z - Hash: dff3748d725239b3 - Time: 531ms
[ng] 
[ng] ./node_modules/unzipit/dist/unzipit.module.js:1178:8-33 - Error: Module not found: Error: Can't resolve 'worker_threads' in '/Users/rob/workspace/adha/mobi/frontend/mobi/node_modules/unzipit/dist'
[ng] 
[ng] 
[ng] ✖ Failed to compile.

Environment:

ionic --version
6.20.1

Angular CLI: 13.2.6
Node: 18.2.0
Package Manager: npm 8.9.0
OS: darwin arm64

Angular: 13.2.7
... common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1302.6
@angular-devkit/build-angular   13.2.6
@angular-devkit/core            13.2.6
@angular-devkit/schematics      13.2.6
@angular/cli                    13.2.6
@schematics/angular             13.2.6
rxjs                            6.6.7
typescript                      4.4.4

[Robinyo]

Ok, so I upgraded my Ionic / Angular project to "^14.0.0".

import { setOptions, unzip } from 'unzipit';

setOptions({ useWorkers: false });

And:

  private async loadData() {

    await LoadingService.presentLoading();

    forkJoin([
      this.documentService.getDocument(this.id, 'urn:oid:1.3.16.1.38818.449459763.20190718104352576')
    ]).subscribe(async data => {

      const document = data[0];

      const blob = base64toBlob(document, 'octet/stream');

      const {entries} = await unzip(blob);

      // print all entries and their sizes
      for (const [name, entry] of Object.entries(entries)) {
        this.logger.info(name, entry.size);
      }

      LoadingService.dismissLoading();

    });

  }

See: https://stackoverflow.com/questions/16245767/creating-a-blob-from-a-base64-string-in-javascript

Console:

MockDocumentService: getDocument() - patientLogicalId: 979881974 documentId: urn:oid:1.3.16.1.38818.449459763.20190718104352576
document.page.ts:74 CDA/CDADoc/ 0
document.page.ts:74 CDA/CDADoc/CDA_ROOT.XML 95555
document.page.ts:74 CDA/CDADoc/CDA_SIGN.XML 4787